You’ve likely seen the words stamped on a key before: “Do Not Duplicate.” This small inscription can cause a great deal of confusion and frustration, especially when you need an extra copy for a family member, roommate, or emergency stash. It often leads people to wonder if they are about to do something illegal or if it’s even possible to get a copy made.
The truth is that the stamp is more of a suggestion than a strict legal command in most cases. For standard keys, it serves as a deterrent requested by the original owner, but it doesn’t carry legal weight for a locksmith or hardware store.
This guide on how to copy keys that say do not duplicate will walk you through the process, explain the nuances, and show you how to legally and effectively get a copy of a key, even one that says “Do not duplicate.”
What Will You Need?
Before you begin, gathering a few simple items can make the process smoother, especially if you encounter initial resistance.
- The Original Key: This is essential. You cannot create a copy without the master key you want to duplicate.
- Identification: A valid, government-issued ID like a driver’s license can help verify your identity and ownership, making store clerks more comfortable.
- Proof of Residency/Ownership (Optional but helpful): If you’re copying a key to your apartment or property, a utility bill, lease agreement, or letter of authorization from a landlord can provide additional proof that you have the right to duplicate the key.
- A Bit of Patience: Not every attempt will be successful on the first try. You might need to visit more than one location or try a different method.
10 Easy Steps on How to Copy Keys That Say Do Not Duplicate
Navigating the process of copying a “Do Not Duplicate” key can be straightforward if you know the right steps to take. It’s often more about understanding the system than trying to circumvent it. Here’s a detailed breakdown of how to approach this task effectively and ethically, ensuring you get the spare key you need without unnecessary trouble.
Step 1: Examine the Key
Before you go anywhere, take a close look at the key. Is it a standard house key from a common brand like Schlage or Kwikset? Or does it have unique markings, a strange shape, or the name of a high-security lock company like Medeco or Mul-T-Lock? Standard keys are generally easy to copy. The “Do Not Duplicate” stamp is often just a request from a landlord or previous owner. However, if the key is a high-security or restricted type, it’s part of a system designed to control who can make copies. These keys are often patented, and only authorized dealers can duplicate them after verifying your identity and authorization through a specific protocol. Understanding which type of key you have is the most important first step, as it determines your next course of action and the likelihood of success at a standard kiosk or hardware store.
Step 2: Understand the “Do Not Duplicate” Stamp
For the vast majority of residential and basic commercial keys, the “Do Not Duplicate” (DND) stamp is not legally binding. It functions as a notice to the key duplicator that the original owner would prefer copies not be made without permission. A locksmith or hardware store clerk is not breaking the law by copying it; they are simply fulfilling a service request. Many businesses, however, adopt a policy of refusing to copy these keys to avoid potential disputes. They see it as a liability risk—for example, if a copied key were used in a break-in. This is a company policy decision, not a legal mandate. Knowing this empowers you to have a more informed conversation when you request a copy.
Step 3: Try an Automated Key-Cutting Kiosk
Your first and often most successful stop should be an automated key-copying kiosk, commonly found in supermarkets and large retail stores like Walmart or Home Depot. These machines are entirely self-service. You insert the key, the machine’s internal scanner analyzes its shape and grooves, and a robotic arm cuts a new blank key to match. The machine does not read the “Do Not Duplicate” text stamped on the key’s bow. It only cares about the physical cuts. This method is fast, anonymous, and highly effective for any standard key, regardless of what’s written on it. It’s the path of least resistance and should be your go-to strategy for non-restricted keys.
Step 4: Visit a Different Hardware Store
If a kiosk isn’t an option or if it fails to copy your key correctly, your next step is a traditional hardware store. However, as mentioned, employee discretion plays a big role here. If the first store you visit turns you away because of their store policy regarding DND keys, simply thank them and leave. Don’t argue or try to persuade them. Instead, go to another hardware store in a different location or part of town. Another employee at a different store might not have the same strict interpretation of the policy, or they may be more willing to help if you seem like a legitimate owner. Sometimes, success is just a matter of trying a few different places until you find one with a more lenient approach.
Step 5: Be Prepared to Show Identification
When you approach a clerk at a hardware store or a professional locksmith, having your identification ready can make a significant difference. Being proactive and offering to show your driver’s license demonstrates transparency and helps build trust. It shows that you aren’t trying to hide your identity and suggests you have a legitimate reason for needing the copy. This simple gesture can ease the clerk’s concerns about liability. If the key is for your home, also having a piece of mail with your name and address on it can further support your case, proving you reside where the key is used. This preparation turns a potentially suspicious request into a routine customer service interaction.
Step 6: File Down the “Do Not Duplicate” Stamp
If you are repeatedly denied and are certain the key is not a restricted, high-security model, you can consider physically removing the stamp. Using a small metal file, you can gently grind down the “Do Not Duplicate” text from the bow of the key. This should only be done as a last resort. Once the text is gone, a clerk at a hardware store or a key-cutting service will have no reason to refuse the request, as the key will appear to be a standard, unmarked original. Be careful not to alter the key’s shaft or grooves in the process. This method removes the visual obstacle that triggers store policies, allowing for a straightforward duplication process for an otherwise standard key.
Step 7: Find a Professional Locksmith
While hardware stores are convenient, professional locksmiths are the true experts in this field. They have a deeper understanding of keys, locks, and the legalities involved. A locksmith can quickly identify whether your key is a simple DND key or a genuinely restricted, high-security one. If it’s the former, many locksmiths will be willing to copy it, especially if you can provide proof of ownership or a credible explanation. They are often less bound by the rigid corporate policies of large retail chains. If the key is a high-security model, they can also guide you on the official, proper channels to obtain a duplicate, which typically involves contacting the original system provider.
Step 8: Obtain a Letter of Authorization
For renters or employees, the most straightforward and ethical way to get a copy of a DND key is to ask for permission. Approach your landlord, property manager, or employer and explain why you need an additional key. You might need one for a partner, for emergency access, or simply for convenience. In many cases, they will provide you with an extra copy themselves or give you a written letter of authorization. This letter, addressed to a specific locksmith or “to whom it may concern,” grants you official permission to have a duplicate made. Presenting this letter along with the key removes all doubt and liability for the person cutting the key.
Step 9: Use an Online Key-Cutting Service
In recent years, several online services have emerged that allow you to duplicate keys from the comfort of your home. These services typically require you to take high-resolution photos of your key from multiple angles using their mobile app. Their software analyzes the images to determine the key’s precise measurements and cuts. They then cut the key remotely and mail it to you. Much like automated kiosks, this process is often automated and bypasses the human judgment factor associated with in-person requests. This can be a discreet and convenient option, especially for standard keys with a DND stamp, though you should ensure you are using a reputable service to protect your security.
Step 10: For Restricted Keys, Contact the Manufacturer
If all the above steps fail, you likely have a restricted or patented key. These keys are part of a high-security system where the manufacturer controls all duplications. The keyway is proprietary, and key blanks are not available on the open market. In this scenario, you cannot simply copy the key. You must follow the official procedure. This usually involves identifying the locksmith who installed the system (their name may be on the key) or contacting the manufacturer (e.g., Medeco) directly. They will have a record of who is authorized to request copies, and you will need to provide an ID and often a specific authorization card or code to order a new key.
Conclusion
Copying a key marked “Do Not Duplicate” is often more of a logistical puzzle than a legal barrier. For the majority of keys, the inscription is a deterrent, not a legal command.
By understanding the type of key you have and approaching the situation with the right tools and knowledge, you can easily obtain a spare. Start with automated kiosks, be prepared with identification for in-person requests, and don’t hesitate to seek out a professional locksmith for expert advice.
Hopefully, the article on how to copy keys that say do not duplicate has provided you with a better understanding of the process and options available to you.